Is Bitcoin's cryptocurrency technology solving the real-world problems of human-computer interaction or addressing the efficiency issues of formal blockchain technology. Since ETH, all new public chains have been committed to addressing efficiency and performance issues. But the result is: it does not solve any practical problems. The real problem that Satoshi Nakamoto solved through his human-computer interaction skills is the increasing market value of BTC, which is the emergence of electricity to monetary value. Whether it is forward or backward, the formal direction of blockchain technology to solve efficiency problems is wrong. The direction of human-computer interaction for solving real-world problems is the right one.